from Wilkinson Sword Choosing Pruners or Loppers Bypass, Precision, Anvil what is the difference and how do I know which pair I should choose? Well it really comes down to what cutting job you need to do in the garden whether it is trimming new stems or tougher, woodier growth.
Bypass or Precision These are essentially the same, just different terminology. They work on a scissor-like cutting action with one blade ‘bypassing’ the other. They are ideal for cutting growth which is around 1 to 2 years old as they provide a very clean cut, essential for maintaining a healthy plant or shrub. For pruning of this nature there is little pressure required and therefore the pruners or loppers tend to be light in weight. A good quality pair of Bypass or Precision pruners or loppers can still handle older cuttings but a little more effort is required. However to avoid unnecessary strain on the hands and wrist it may be wise to consider either Anvil or Ratchet models.
Anvil or Power Again, these are essentially the same. They have a blade that closes against a softer metal anvil on the lower jaw. This action tends to crush the stem being cut so this type of pruner or lopper is particularly suited to older wood where the cleanliness of cut is not as important.
Ratchet Ratchet pruners and loppers have the advantage of being easy to use and take the strain out of cutting woody growth. The ratchet mechanism allows you to cut through a branch in 3 or 4 movements rather than in one action. This means that less effort is required. Ratchet pruners or loppers are beneficial for the mature gardener or gardeners who suffer from arthritic conditions and disabilities.
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